Across
- 4. perceptions have no direct external cause
- 6. state of awareness
- 12. this is an opiate
- 13. trouble breathing while asleep
- 14. this can create a distorted experience
- 18. failure to get enough sleep
- 21. clear one's mind and produces relaxation
- 22. suggestions made during hypnosis
- 23. rapid eye movement
- 24. involves screaming, panic, or confusion
Down
- 1. heightened suggestibility
- 2. drugs that often produce hallucinations
- 3. this is a depressant
- 5. chemicals that affect the nervoussystem
- 7. this is a stimulant
- 8. walking or other behaviors while asleep
- 9. this is a tranquilizer
- 10. biological clock
- 11. number of sleep stages
- 15. this is a mixed stimulant-depressant
- 16. this is a hallucinogen
- 17. suddenly falling asleep
- 19. unpleasant dreams
- 20. involves machines to help control